/**
 * Copyright (C) 2007 Chunyang Wang.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.chunyang.common.base;

/**
 * Helper functions for operating on array.
 * 
 * @author Chunyang Wang
 * 
 */
public class ArrayUtils {

	public static void swap(Object[] array, int i, int j) {
		Object key = array[j];
		array[j] = array[i];
		array[i] = key;
	}

}
